Make writing node state to fact repos optionnal
In #23045 we gave the possibility to not write to commit to fact repo. To limit I/O, we may want to totally disable writing node change.
Option would be:
rudder.facts.repo.writeNodeState=false # totally disable writing node change (new default used if property is not in the config file and so for migration) rudder.facts.repo.writeNodeState=true # enable, commit in git is managed by the previous property 'rudder.facts.repo.historizeNodeChange'